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Showing 1 to 12 of 12 for “"CORDIC"”.
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Architectural, numerical and implementation issues in the VLSI design of an integrated CORDIC-SVD processor
… The use of COordinate Rotation DIgital Computer (CORDIC) arithmetic results in an efficient VLSI implementation of the processor that forms the basic unit of the array. A six-chip custom VLSI chip set for the processor was initially designed, fabricated in a 2.0$\mu$ CMOS n-well process, and …
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Efficient arithmetic for high speed DSP implementation on FPGAs
… a new technique for predicting the accuracy of CORDIC systems computing vector magnitudes and cosines/sines is presented. This work allows the most efficient CORDIC design for a specified level of accuracy to be found quickly and easily without the need to run lengthy simulations, as was the …
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Amplitude and frequency demodulation controller for MEMS accelerometer
… uses a Hilbert Transform filter and the CORDIC algorithm to simultaneously estimate both the amplitude and phase of a signal. A feedback controller is designed to hold the oscillation of a mass resonator at a constant amplitude.
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On the realisation of sequential fast fourier transform for orthogonal frequency division multiplexing based on field programmable gate array
… on using a COordinate Rotation Digital Computer (CORDIC) method to generate the trigonometric constant values. In this work, the FFT Radix-2 Decimation in Frequency (DIF) algorithm has been chosen and efficiently implemented on a Xilinx FPGA in a programmable form to suit a variety of PHY layer …
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Secure Gaussian sampling for lattice-based signatures: new directions for reaching high standard deviation
… first Box-Muller algorithm is computed using the CORDIC family of algorithms, which use coordinate rotations to calculate the transcendental functions. These are lightweight algorithms and are well-studied, outside of lattice-based cryptography. There is, hence, a plethora of literature offering …
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Experimental demonstration of cap transmitter using very high speed IC hardware description language (VHDL)
… 3 stages were connected with each other using CORDIC algorithm and 23 multiplexers. We believe that this project is a good start for implementing 2D-CAP in the real time. Real time is good because it is timeliness, fast, low loss rate, low end to end delay and very cost effectively.
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Tilt-Compensated Magnetic Field Sensor
… as the Coordinate Rotation Digital Computer (CORDIC) algorithm. Both calculation methods are compared for execution time and efficiency. Successful incorporation of all design aspects leads to detection and output of stable earth magnetic fields, sinusoidal signals, and aperiodic signatures …
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Low-voltage embedded biomedical processor design
… datapath switching activity, and a modified CORDIC engine features increased input range and decreased quantization error over conventional designs. At the system level, the addition of accelerators increases leakage power and bus loading; strategies to mitigate these costs are analyzed in …
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Wireless Neural Recording and Stimulation SoCs for Monitoring and Treatment of Intractable Epilepsy
… application. The architecture uses three CORDIC processing cores that require shift-and-add operations but no multiplication. The efficacy of the processor in epileptic seizure detection is validated on human EEG data and yields comparable performance to software-based algorithms. The …
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Complexity reduction in multiple input multiple output algorithms
… introduced error. Additional modification of the CORDIC algorithm (a square root- and division-free algorithm used to perform QR decomposition) results in more than 80% of computational complexity savings. Further, Minimum Mean Squared Error (MMSE) detection is applied to Least Mean Squared (LMS) …
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Novel load identification techniques and a steady state self-tuning prototype for switching mode power supplies
… is the Constant-Geometry FFT (CG-FFT).Hybrid CORDIC-LUT scalable architectures, has been introduced as alternative approach for the twiddle factors (phase factors) computation needed during the FFT algorithms execution. The shared core architecture uses a single phase rotator to satisfy all TF …
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Integration eines Fahrzeugniveausensors in ein Gummi-Metall-Lager eines Fahrwerklenkers
In zunehmendem Maße werden Kraftfahrzeuge mit Sensoren zur Erfassung des Fahrzeugniveaus, also der Lage des Fahrzeugs relativ zur Straßenoberfläche in Richtung der Fahrzeughochachse, ausgestattet. Informationen zum Fahrzeugniveau werden beispielsweise für die automatische Leuchtweitenregulierung …